This PowerPoint helps students to consider the concept of infinity.
Conditional sentences
1. CONDITIONAL SENTENCES Type 0 - Type 1 - Type 2 - Type 3 Mixed Conditionals Sentence connectors showing condition
2. Type 0 (general truths) They are used to express something which is always true. We can use WHEN instead of IF. If-clause: Present simple Mainclause: Present simple If/WhenitSNOWS, theroadsGETslippery and dangerous.
3. Type 1 (real present) They are used to express real or very probable situations in the present or future. They are also used to give instructions. If-clause: present simple Mainclause: future, imperative, can/may/might/must/should/could IftheyWORKhard, theyWILL FINISH theprojecton time. IftheyFINISHtheproject, CALL me. IftheyWORKhard, theyMAY FINISH theprojectbynext Friday.
4. Type 2 (unreal present) They are used to express imaginary situations which are contrary to facts in the present and, therefore, are unlikely to happen in the present or future. They are also used to give advice. If I DIDN’T HAVE towork so much, I WOULDN’T BE so tired. If-clause: Past simple Mainclause: Would/could/might + bareinfinitive IftheweatherWEREbetter, weCOULD / MIGHT HAVE a picnic.
5. Type 3 (unreal past) They are used to express situations which are contrary to facts in the past. They are also used to express regrets or criticism. If-clause: Pastperfect Mainclause: Would/could/might + have + pastparticiple If he HAD BEEN more careful, he WOULDN’T HAVE MADE such a bigmistake. IfyouHADN’T HAD a lot of luck, youCOULD/MIGHT HAVE LOST allyourmoney.
6. MIXED CONDITIONALS Type 2 – Type 3 We can form mixed conditionals, if the context permits it, by combining an if-clause from one type with a main clause from another. The most common types are: IfyouWERE more sensible, youWOULDN’T HAVE SPOKEN toyourparentslikethat. Type 3 – Type 2 If he HADN’T STOLEN allthatmoney, he WOULDN’T BE in prisonnow.
